Would be quicker to ask for voulanteers and all go up one sunday to do a proper cleaning job on it (My hands up)... I fear with 3 yrs to go you have left it too late for the officials to sort out
Start the accyweb friends of the coppice society or summat..... seriously.. I have been waiitng years for accyweb to make a difference.. have a project... lets see if this is it ?